Administration Intravesical BCG Vaccine/therapeutic use *Carcinoma in Situ/diagnosis/therapy Female Humans Male Neoplasm Invasiveness *Urinary Bladder Neoplasms/diagnosis/pathology/therapy *Urology *BCG unresponsive *Bacillus Calmette-Guerin (BCG) *Bladder cancer *Cystoscopy *Diagnosis *European Association of Urology (EAU) *Follow-up *Guidelines *Intravesical chemotherapy *Prognosis *Radical cystectomy *Transurethral resection (TUR) *Urothelial carcinoma